A couple Bhop questions

Hey guys, I've been bhoping for awhile now, I'm fairly consistent but sometimes my hops just randomly rubberband or I lose a lot of momentum from the wall cancel even if it looks frame perfect. My questions are.

1. Does charging the jump help you? Me personally it doesn't really seem to effect much, sometimes it feels like the quicker I wall cancel from the start of the jump the more momentum I carry, but othertimes it feels completely random how much momentum carries over.

2. do you use directional inputs? Again for me it hasn't effected much. I know in games like tf2 you wanna keep directional inputs to a minimum as doing so slows you down, but I don't think this is true with hulk's bhops.